—— 请按键盘 空白键 开始游戏 ——

The essence of mathematics lies in its freedom.
Design without functionality is art, but design with functionality changes lives.
所以,国家的钱财不足以来应付饥荒,救济孤儿寡妇,这样,国家就贫困,百姓就难于治理。 
Never take yourself too seriously. Nobody else does.